Carpentry/Framing/Stairs

Stair Framing

Tread - The horizontal portion of a stair

Total Rise - the distance from top of finished floors that stairs span

Max and Minimums of Rise and Run

Alberta/Canada Building Code

Stair Type	Rise, mm		Run, mm		Tread Depth
	max	min	max	min	max	min
Service	No limit	125	355	No limit	355	No limit
Private	200	125	355	210	355	235
Public	200	125	355	230	355	250